Evaluation of change in muscle activity as a result of posterior lumbar spine surgery using a dynamic modeling system

Spine
Lacey BresnahanRaghu N Natarajan

Abstract

A commercially available musculoskeletal model of the lumbar spine was modified to study the change in muscle activation as a result of posterior lumbar surgery at the L3-L4 and L4-L5 segments. To evaluate how graded resection of the lumbar paraspinal muscles as a result of posterior lumbar surgery affects muscle activity for a variety of movement tasks. Several in vivo studies compare the change in functional outcome of the paraspinal muscles following surgery. However, due to limitations that exist with current in vivo methods no study to date has been able to quantitatively examine how the function of individual muscles in the lumbar spine change in response to different levels of injury. A multibody dynamic musculoskeletal model of the lumbar spine was modified to measure muscle activity using a parametric examination of change in the cross-sectional area of muscles affected by posterior lumbar surgery. This study shows that the reduction in muscle cross-sectional area as a result of posterior lumbar surgery at L3-L4 and L4-L5 results in a change in trunk muscle activity where the greatest change occurs during axial rotation and lateral bending. The results suggest that preservation of the posterior paraspinal musculature r...Continue Reading

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Citations

Nov 29, 2012·Journal of Neuroimmune Pharmacology : the Official Journal of the Society on NeuroImmune Pharmacology·Anandakumar ShunmugavelInderjit Singh
Jun 20, 2012·Nature Reviews. Neurology·Zachary A Smith, Richard G Fessler
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Jul 29, 2016·European Spine Journal : Official Publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society·Masoud MalakoutianThomas Oxland
Jun 27, 2017·Computer Methods in Biomechanics and Biomedical Engineering·Ellyn C RanzRichard R Neptune
Mar 30, 2021·Journal of the Mechanical Behavior of Biomedical Materials·Masoud MalakoutianThomas R Oxland
Jul 15, 2021·European Spine Journal : Official Publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society·Yogesh KumaranVijay K Goel

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